Typewriting-machine



A. B. ELY.

TYPEWRITING MACHINE. APPLICATION EILED MAR. 20. 19l9.

1,398,321 Patented Nov. 29, 19210 a specification.

OFFECE,

ALo'NZo 13'. ELY, or eno'ron,nnw'ronmnssienon o conoNA T rnwnrrn-a con:- PANY, me, or escrow, NEW YORK, A' conronarionor NEWYORK.

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Toazzahama m ycoaamj J Be it kown that I, ALotizoBQ ELY, citizeno f the United States ofAmerica, and a resident o'tGroton, county of Tompkins, andState of New York, haveinvented cere tain newandusetul Improvements in Typewritinglvlachiiies, of which the following is This invention has relation to thattype of key-action which is usually; employed for ace, cent and underscore marks, where itis de-v sired to print the character but to avoid feeding the carriage, is well known anda particular feature in this invention liesvin the provision of very simple means whereby the dead key or keys maybe loca'ted, at any positionin the keyboard, the parts being so, constructed and arranged, that the deadkey lever, wherever located in the bank, may

be connected to the non-feed deviceswithout the useofadditional or special parts and without changing the usual arrangement of parts, tlSjIIlOIB fully hereinafter set forth.

My invention is shown in the drawingsas, applied to a Corona key-action and escapement-operating mechanism, but it will be understood that the invention in its broader aspects may be applied to varioustypes of mechanism, new aswell as old. The Petermann Patent 1,121,040, dated December 15, 1915, shows one instanceoi'f the'type of apparatus to which the invention may be applied. l

In the drawings- V i Figure 1 is a side elevationshowing the invention applied to the well-known Corona key-action and escapement-operating device;

Fig. 2 is a perspective view of the essen- Y tial parts of the invention;

Fig. 3 isa detail view of one of the detachable clips.

In the drawing annexed, the key-lever 5 is arranged to depress the universal-bar 6 wvhehflactuated, and the depression of this bar serves, through the medium of a pair of side arms 7 and a link 8 to swing backwardly the pivoted bai1'8 which, through the medium ofa rearwardly-extending tappet 9, actuates the usual carriage-feed escapement '10. The swinging of the bail 8 backwardly also, in the usual construction, feeds the ribbon, but, as the feeding of the ribbon is not involved directly in the present invention, I have not illustrated the ribbonfeeding devices.

Specification bf Letters Patent. Patented No v. 29, 1921.. attenuated March 20, 1919 Saar N6. 283,702.

, 'I.o earry out inventiom l pivot the tappet 9to the bailS a horizontal pivot 11 to permit theltappet to be swung downwardly out of thefpath of the escapement, asshown in dotted lines in Fig. 1, so that when the tappet is thus adjusted to miss the escapement, the bail maybe given its usual backward operative stroke without actuating is a horizontal link16, whose forward endis pivotally connected to an upstanding ear 17 n carried the dead-key lever 5, so that when thisparticular key-lever is operated the link 16 will rock shaft 14 and this action, through the medium ofarm 13 and link 12, will pull down the tappet 9 and hold it downduring the working stroke of the escapement-actuating bail 8, thereby actuating the type bars in the usual manner without operating the carriage-feed devices. "The ribbon-feed, as heretofore stated, will be actuated in the usual manner through the movement of the bailS. I have not shown the type-bar action, but it will be understood that the typebars are actuated in the usual mannerfrom the link 18 or in any other suitable way.

. To enable the dead key to be placed in any one of the key-positions in the keyboard, I make the depending arm 15 adjustable along therock-shaft 14. This adjustability may be accomplished in any suitable way.- As a simple way of doing this, I afliX the arm 15 to an open spring-clip 19and adapt this clip, to be engaged in notches in the upper and lower sides of the shaft, the notches being arranged in pairs. There will be a plurality of pairs of notches along the length of the shaft,;preterab1y as many pairs of notches as there are key-levers, so that the dead-key lever may be located in any keyposition in the keyboard, and at the same time provide for a direct pull on the rockshaft through the medium of the link 16.

The upper end of the link 12 may be connected pivotally to the tappetin any 'suitto normally hold the tappet up against the T-head, a stop-lug 23 being arranged to arrest the tappet in its upward movement and hold it in a horizontal position in line with the lever or dog of the escapement 10;

WVhen more than one of these keys is employed in thekeyboard, it will be observed that when one ofthem is "actuated the link 16 connected to the other dead-key or keys will have a pushing movement imparted to it through the rocking of the shaft 14, so

that, this pushing movement on the links not in use were not compensated for, the resultant action would probably be that the links would bend or said other keys would be actuated through the medium of the links 16; To avoid this, I provide a lost-motion connection somewhere between the rockshaft and the key-lever adaptedto come into play when any one of the links 16 is pushed forwardly} A simple way of doing this is to connect each link to the upstanding leverear 17 by a horizontal slot 24:. In this way, the operation of the dead-key lever will exert the desired pull upon the link 16, but the other dead-key links 16, if additional ones be employed, will be permitted to slide forwardly freely to a sufficient extent to avoid'injury to the parts or an undesirable action of the other dead keys.

As hereinbefore stated, the oscillation of the bail 8 will feed the ribbon by means well known; and it will be understood further that oscillation of this bail willvalso operate the ribbon-vibrator, an instance of this being shown in Petermann Patent No. 1,121,044, dated December 15, 1914:. As

a matter of fact, this invention lends itself very nicely to use in connection with a shifting or movable member such-as bail 8 which is operated to not only feed the carriage but to shift the ribbon-vibrator to covering position, since in my apparatus I provide for giving such member a full throw even when operated by the dead-key action, thereby insuring a complete operation of the ribbonvibrator. In the drawing, the ribbon-vibrator is shown at 25 and the mechanism for operating said vibrator at 26, this latter mechanism being connected to the bail 8.

The nature and scope of the invention having been thus indicated and its preferred embodiment having been specifically described, what is claimed as new is:

1. In a typewriting machine, the combination'of character-key levers, an escapementoperating element operable each time akey lever is actuated, a rock shaft" extending transversely of the machine, means operable by said shaftfor adjusting said element out of cooperative relation with the escapement, said shaft having spaced pairs of oppositely disposed flat surfaces, a rock-arm having a- U-shaped headadapted to embrace the bar and frictionally engage either of said pairs of flatsurfaces, and a link detachably connected with one of said key levers atone end and connected at its other end with said rock arm.

2. In a typewriting machine, the combination of character key levers, a universal bar operable directly by the key levers, a vibrating member shiftable fore and aft of the 'machine by the universal bar, an escapement operating device pivotally held to said member to swing vertically relatively thereto, means for normally holding said device in a substantially horizontal operative position,

machine by the universal bar,an escapement operating device pivotally held to said memher to swing vertically relatively thereto, means for normally holding said device in a substantially horizontal operative position, a rock shaft, a rock-arm on said shaft, a link connecting said rock arm and the escape ment 7 operating device, and individual operating connections between said shaft and certain of the key levers for rocking the shaft in a direction to swing the escapement operating device downwardly into an inactive position when either of said key' levers is actuated. I I

1. In a typewriting machine, the combination of a fore and aft rocking frame extending transversely of the machine, a universal bar for rocking said frame, printing keys, key-levers carrying said keys adapted to engage and operate the universal bar, an escapementdevice,a tappet pivotally held to said frame, means for normally holding the tappet in position to actuate the escapement device when the frame is rocked, and means connecting one of said key levers with the tappet for swinging the tappet about its pivot when the key-carrying end ofthe lever is depressed to render the tappet ineffective on the escapement device-j p 5; In atypewritingmachine, the combina tion of an escapement device, a universal bar, character keys, key-levers carrying said keys and "adapted to engage and operate the universal bar, a movable tappet support operable by the universal bar and shiftable fore and aft of the machine, a tappet for actuating the escapement device pivotally held to said support to swing vertically relatively thereto, means for normally holding the tappet in avrearwardly extending operative position, and means operable by one of said key levers for swinging the tappet downwardly about its pivot to an inoperative position when the key-carrying end of said lever is depressed.

6. In a typewriting machine, the combination of character key levers, a rocking frame, a universal bar for rocking the frame, an escapement operating tappet pivotally held to the frame to swing vertically relatively thereto, a rock shaft, a rock arm on said shaft, a link pivotally held at its lower end to said rock arm and having a sliding and pivotal connection at its upper end with said tappet, and means connecting one of said key levers with the shaft adapted to rock the shaft when said lever is actuated and thereby swing the tappet relatively to the rocking frame to an inoperative position.

7. In a typewriting machine, the combination of character key levers, an escapement operating element, a shiftable support for said element operable each time a key lever is actuated, a rock shaft extending transversely of the machine, individual operating connections between certain of said keys and the shaft for rocking the shaft, said connections having lost-motion therein, and means positively connecting said element and said shaft for shifting the element relatively to its support to an inoperative position by a partial rotation of the shaft through the medium of either of the key levers connected therewith.

8. In a typewriting machine, the combination of character key levers provided with short longitudinally extending slots, an escapement operating element, a shiftable support for said element operable each time a key lever is actuated, a rock shaft extending transversely of the machine, means operable by a rotary movement of said shaft for shifting the element relatively to its support to render the element ineffective, a rock arm, means for detachably connecting said arm with the shaft adjacent any desired one of said key levers, and a link pivotally connected at one end with said rock arm and provided with a hook at its other end adapted to engage in the slot in any desired one of said key levers.

9. In a typewriting machine, the combination of character key levers, a universal bar operable each time a keylever is actuated, an escapement operating element, a vibratof said key levers having a slot therein through which the hook portion of the link extends. 10. In a typewritin machine, the combination of carriage feeding mechanism,character key levers, and means for silencing any desired key lever embodying a rock shaft extending transversely of the machine and provided with longitudinally spaced angular reduced portions, a rock arm provided with a spring clip adapted to grip either of the reduced angular portions of said shaft, a linkpivotally held at one end to said arm and provided with means for detachably connecting the same with a desired key lever, and means operable by a rotary movement of the shaft for rendering the carriagefeedinqmeans inactive.

11. in a typewriting machine, the combination of character key levers, a universal bar operable directly by said key levers, an inverted U-shaped frame pivotally supported to swing fore and aft of the machine and operable by the universal bar, an escapement device, a vertically swinging escapement-operating tappet pivotally held to said frame, a stop on the frame for determining the normal position of the tappet, a spring for normally holding said tappet against the stop in cooperative relation with the escapement device, a rockable member, a link connecting said rockable member with the tappet, and an operating connection between one of said key levers and the rockable member for swinging the tappet relatively to the frame by a movement of said member and link when said key lever is actuated. 12. In a typewriting machine, an escapement device, a universal bar, a rocking frame operable by the universal bar, character key levers, an escapement actuating tappet pivotally held to said frame, a spring normally holding said tappet in cooperative relation with the escapement device, a rock shaft ex tending transversely of the key levers across the machine, a rock arm rigidly held to said shaft, a tappet-deflecting link connected with the tappet and rock arm, and an inter changeable operating connection provided at opposite ends thereof with means for sep arably attaching the same to said shaft and either of the key levers.

This specification signed this Sd'day of March, A. D. 1919.

ALONZO B. ELY. 

